In a small saucepan whisk together carob and arrowroot or cornstarch. Gradually whisk in water or milk, keeping the mixture as smooth as possible. Heat, stirring often, until steaming hot. Stir in vanilla extract, if using, and sweetener to taste.

Tips: If you prefer, you can substitute unsweetened cocoa powder for the carob powder, or try a combination of the two. This recipe is also easily doubled, tripled, or quadrupled.